1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/**
* Handles opening of and synchronization with the reveal.js
* notes window.
*/
var RevealNotes = (function() {
function openNotes() {
var jsFileLocation = document.querySelector('script[src*=notes]').src; // this js file path
jsFileLocation = jsFileLocation.replace(/notes\.js(\?.*)?$/, ''); // the js folder path
var notesPopup = window.open( jsFileLocation + 'notes.html', 'reveal.js - Notes', 'width=1120,height=850' );
// Fires when slide is changed
Reveal.addEventListener( 'slidechanged', function( event ) {
post('slidechanged');
} );
// Fires when a fragment is shown
Reveal.addEventListener( 'fragmentshown', function( event ) {
post('fragmentshown');
} );
// Fires when a fragment is hidden
Reveal.addEventListener( 'fragmenthidden', function( event ) {
post('fragmenthidden');
} );
/**
* Posts the current slide data to the notes window
*
* @param {String} eventType Expecting 'slidechanged', 'fragmentshown'
* or 'fragmenthidden' set in the events above to define the needed
* slideDate.
*/
function post( eventType ) {
var slideElement = Reveal.getCurrentSlide(),
messageData;
if( eventType === 'slidechanged' ) {
var notes = slideElement.querySelector( 'aside.notes' ),
indexh = Reveal.getIndices().h,
indexv = Reveal.getIndices().v,
nextindexh,
nextindexv;
if( slideElement.nextElementSibling && slideElement.parentNode.nodeName == 'SECTION' ) {
nextindexh = indexh;
nextindexv = indexv + 1;
} else {
nextindexh = indexh + 1;
nextindexv = 0;
}
messageData = {
notes : notes ? notes.innerHTML : '',
indexh : indexh,
indexv : indexv,
nextindexh : nextindexh,
nextindexv : nextindexv,
markdown : notes ? typeof notes.getAttribute( 'data-markdown' ) === 'string' : false
};
}
else if( eventType === 'fragmentshown' ) {
messageData = {
fragment : 'next'
};
}
else if( eventType === 'fragmenthidden' ) {
messageData = {
fragment : 'prev'
};
}
notesPopup.postMessage( JSON.stringify( messageData ), '*' );
}
// Navigate to the current slide when the notes are loaded
notesPopup.addEventListener( 'load', function( event ) {
post('slidechanged');
}, false );
}
// If the there's a 'notes' query set, open directly
if( window.location.search.match( /(\?|\&)notes/gi ) !== null ) {
openNotes();
}
// Open the notes when the 's' key is hit
document.addEventListener( 'keydown', function( event ) {
// Disregard the event if the target is editable or a
// modifier is present
if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
if( event.keyCode === 83 ) {
event.preventDefault();
openNotes();
}
}, false );
return { open: openNotes };
})();
|